Spectrophotometry Investigations on Uranium (VI)-NMethylaminothio- Formyl-N’-Phenylhydroxylamine Complexes

Sukhvir Singh, Veena Pradhan, A. R. Sad, M. Katyal* and S. P. Mathur

Research Laboratories, Government College, Beawar-305 901 India.

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ABSTRACT:

Uranium (VI) forms a pale yellow coloured complex with N -methylaminothioformyl-N*-
phenylhydroxylamine. The complex has maximum absorbance at 400 nm at pH 4.7-5.3. Beers
law is valid upto 22.6 ppm of uranium (VI). The molar absorptivity is 2.3 x 104 mol-1 cm-1.
The effect of diverse ions, stability constants and the structure of the complex are discussed.

KEYWORDS:

Uranium; Spectrophotometry; Investigations